Things to do:

GREENWICH BOOK FESTIVAL: How does a two-day celebration of literature at a World Heritage Site sound? Greenwich Book Festival returns to the magnificent Old Royal Naval College today, bringing author Q&As, creative workshops, and magical storytelling sessions. Old Royal Naval College, various prices, 15-16 June

SHAKE YOUR TIC TACS: Indulge your sweet tooth at Tic Tac's pop -up. You can choose from 10 flavours to create your own bespoke mix, suggest new combos to the team, and make your own GIF in the photo booth. There's also a chance to win tickets to Elrow festival. The White Space (Covent Garden), free, book ahead, 15-16 June

ELDERFLOWER EXTRAVANGANZA: If you prefer something stronger to ease you into the weekend, check out Maison St-Germain's immersive installation designed by Henry Holland. The French elderflower liqueur company is celebrating the fleeting elderflower harvest with a curated sensory experience featuring St Germain cocktails. 38 Grosvenor Square, free, book ahead, 15-16 June

ALDGATE SQUARE FESTIVAL: Go east for a three day festival in celebration of the newly opened Aldgate Square. Tonight's highlights include a kids' fashion show, band Seeds of Creation and ukulele group The Mansell Street Minstrels. Aldgate Square, free, just turn up, 4pm-9pm, 15-17 June

Sounds Like London: our picks today

June brings the Mayor of London's Sounds Like London campaign to the capital — a month-long celebration of both women in music and London's grassroots music scene. Here's our pick of today's Sounds Like London events:

WALK OF SHAME: Having partied her way around the world, made porn, and Tindered herself out, former hedonist Eleanor Conway is on the hunt for moderation and meaning. Join the award-nominated comedian for her Walk of Shame tonight. Roadtrip & The Workshop (Old Street), £15, book ahead, 7pm

A CONTROVERSIAL CAPTAIN: Why is 18th century British explorer James Cook such a divisive figure? (Hint: it's probably something to do with colonialist oppression.) Maori Studies Professor Anne Salmond, independent curator Ahilapalapa Rands, and Pasifika poet-scholar Selina Tusitala Marsh look at his social, cultural and environmental legacy in a British Library panel discussion. The British Library (King's Cross), £12, book ahead, 7.15pm-8.30pm

PHASE THREE: Join rebels battling for a coveted place in utopia while the world as we know it perishes. In this excursive experience you control the narrative — have you got what it takes to escape to paradise? Safehouse 1 (Peckham), from £8, book ahead, 8pm, until 16 June

THE CONCEPT: In the vein of rock operas and iconic concept albums, The Concept is an audio-visual explosion of story, song, music and animation. This piece of improv theatre does come with a disclaimer, though — you may never be quite the same again. The Nursery Theatre (Liverpool Street), £5, book ahead, 8pm-10pm

Good cause of the day

With Mexico's elections around the corner, you may have heard about the shocking number of political murders in recent months. Justice Mexico Now is raising funds to send international electoral observers to Mexico with a Mexican-themed comedy night. Frankie Boyle support act Tiernan Douieb hosts, and there are performances from Francesca Martinez, Jeremy Hardy, and Matt Abbott. Your ticket includes a taco dinner.

London is a city of incredible transformation. With structural remains that date back to ancient history still in existence, this unique walking tour takes in Lost London in all its former glory. From the Titanic booking office to the graveyards of man's best friend, you'll discover the weird and wonderful places that used to exist in the capital but are now only committed to memory. Using old photographs, newspaper cuttings and stories from the past, you'll be amazed at what has largely been written out of our history books...
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How well do you really know London? Visit the streets that inspired Harry Potter locations and see London's most superstitious hotel. On Matt's tour you will explore hidden places and discover stories unknown to even the most knowledgeable of Londoners. Get tickets

If you've never paired ceramics and prosecco before, why on earth not? It's a match made in heaven as Sam and Diana, co-creators of 'Make Your Own', prove at their wonderfully welcoming ceramic painting workshop. Pull up a stool, don an apron and get to work on your very own mug, plate, tile, bowl or ornament. They provide the ceramics as well as a selection of patterns, and will show you exactly how to transfer designs and paint to your heart's content. It's BYO so feel free to pop the prosecco and enjoy the company of like-minded Londoners as you get stuck into your creations. Get tickets

Have you visited London's Roman ampitheatre? What about London's Medieval market places? Hear weird and wonderful tales of our beautiful city as you take a walking tour, seeing everything from centuries-old churches to the hanging place of William Wallace. Whether you've lived here all your life or are visiting for a few days, you're sure to learn something new about London. Get tickets